Why it works: Mushroom and onion are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 10,626 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Rump Steak Pie
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the filling
Preheat the oven to 350°F (175°C).
Layer the steak in a pie dish and sprinkle with salt and pepper.
Skin and split the kidneys, cut into four slices each, and place on the steak.
Add mushrooms if desired.
Layer more steak on top and fill the dish with stock or water.
Boil the minced onion in the stock or water for added flavor.
Remove all fat from the steak to avoid greasiness.
Make the crust and bake
Cover the pie with suet pastry and bake until the gravy boils and the crust is firm.
To make the crust, mix suet with flour, then add water to form a paste.
Roll out the paste thinly and layer it on the edge of the dish.
For a family pie, substitute beef for kidneys and add raw potato slices.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
-
Mushroom + oniontop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + mushroomtop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Mushroom + flourtop 18% of all pairsSmell alikemoderateCooked together8,253 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rump steak
- Provides the meat that becomes tender during the long bake in the pie.
- Suet
- Adds richness and fat that makes the pastry tender and flaky.
- All-purpose flour
- Forms the structure of the suet pastry crust once mixed with water.
- Onion
- Adds savory sweetness and aroma to the stock-based gravy.
- Sheep's kidneys
- Adds a rich, deep meaty flavor to the filling.
The step that matters
Remove all fat from the steak. Excess fat from the meat can melt into the gravy and make the pie greasy, so trimming it before baking keeps the filling lighter.
Swap the onion
How well each one fits the dish's main ingredients (pepper, mushroom, flour):
- Shallotfits better
- Spinachfits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against pepper, mushroom, flour. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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